Chemistry is used all over the cars we drive today, from the exterior paint, bumpers and headlights to interior seats, dashboard components, and the seatbelts and airbags that help protect passengers. Plastics can even be found in lithium polymer car barriers that power some hybrid and electric vehicles. What kind of math does a car…

Biology is the most important subject if you want to study zoology. Almost every university will require this, and many will also ask for maths or another science, like physics or chemistry. Psychology may also be useful, particularly if you are looking to specialise in the behavioural side of zoology. What do you need for…

A decomposition reaction is complete when the mass of the container and its contents no longer changes on heating. You cool the container and and determine the mass of the container + contents. Is mass lost during decomposition? The later stages of decomposition (approximately 40–100% mass loss) comprise the degradation of more recalcitrant compounds (Berg…

Hard water reduces the cleaning capacity of soap. In contrast, hard water does not produce a good lather, so it is more difficult to wash with soap in hard water. It is also not recommended for bathing, laundry, and laboratory purposes. The minerals in hard water react with soap and affect its cleaning capacity. How…

The amine group is located by the position number. Groups that are attached to the nitrogen atom are located using “N” as the position number. More complex primary amines are named with —NH2 as the amino substituent. What does the wedge mean in organic chemistry? Wedge: A symbol used to indicate the position of a…

A high Overall Chemistry will increase player attributes; a low Overall Chemistry will actually decrease them. Chemistry Styles – Modifiers which affect which stats are increased, and how much they’re increased by, when you have a strong Overall Chemistry. Do chemistry styles apply to subs? The Attributes that Chemistry modifies are determined by the applied…

What test could you carry out to confirm that oxygen is not produced? Oxygen supports combustion so a good method of testing for oxygen is to take a glowing splint and place it in a sample of gas, if it re-ignites the gas is oxygen. This is a simple but effective test for oxygen. How…

As you can see there are several topic versions of the exam. In addition, they have different “Year Versions” (for lack of a better term) for each of the topics. For example, let’s say it is 2019, and you are about to take the ACS Chemistry Exam for First Term General Chemistry. What topics are…

Solid Drying Agents Final traces of water are removed by treating the organic solution with a drying agent. A drying agent is an inorganic salt which readily takes up water to become hydrated. What does it mean to dry an organic solution? Drying agents are used to remove trace amounts of water from an organic…

Not all grad schools require an admissions interview, but if they do, it’s an opportunity you’ll want to take advantage of. Is it hard to get into UCSD graduate school? UCSD acceptance rate Acceptances: 40,616. Matriculants: ~6,500. Acceptance rate: 34.3% Are grad school interviews a formality? The interview process varies from university-to-university. Some universities will…

Hello, Being a designer, I don’t think that math and physics are required for graphic and web design. I think the most important thing is creativity and i personally don’t think that some one can learn or tech creativity. What subjects do I need for graphic design? Drawing. Photography. Design Techniques. Art theory. Visual communication…

Mechanical stability can be checked by computing the force constants (or the Hessian matrix of the energy second derivatives). If it is positive definite then your molecule is stable, meaning it will not deform as it is at its energy minimum. Chemical stability maybe checked by calculating the HOMO-LUMO gap. How do you know if…

The order of reactivity is chlorine > bromine > iodine. This is because chlorine could displace bromine and iodine, bromine could only displace iodine, but iodine could not displace chlorine or bromine. How does iodine react with bromine? Iodine, I2, reacts with bromine, Br2, form the very unstable, low melting solid, interhalogen species iodine(I) bromide.…

Kp And Kc are the equilibrium constant of an ideal gaseous mixture. Kp is equilibrium constant used when equilibrium concentrations are expressed in atmospheric pressure and Kc is equilibrium constant used when equilibrium concentrations are expressed in molarity. 2A(g)+B(g) ⇋ 2C(g) All in the gas phase. How are KC and KP related to each other…

The SAT formula sheet provides basic formulas for circles, area, triangles, and volume. But there many additional formulas it will be helpful to know on test day so you can fly through the math section with confidence. What formulas do they give you on the SAT? Area of a Circle. A= πr² Circumference of a…

The burning of the sun is not chemical combustion. It is nuclear fusion. Don’t think of the sun as a giant campfire. It is more like a giant hydrogen bomb. What kind of chemical reaction is the Sun? The sun is powered by a chemical reaction called nuclear fusion that combines lighter elements into heavier…

For example, when peeling an egg you are engaging in a physical change. The boiling of the water itself is also a physical change. The egg becoming hard-boiled is a chemical change. Why is boiling of egg a chemical change? But what happens in the boiling of egg is that the egg’s protein on getting…

How is Davis Vision different than VSP? Davis Vision offers the same services most employees have used with VSP. One unique aspect of Davis Vision is that they fabricate their own eyewear when using a Davis Vision independent provider; this allows Davis Vision to reduce cost. Does Davis vision cover Costco glasses? The Davis Vision…

alloy, metallic substance composed of two or more elements, as either a compound or a solution. The components of alloys are ordinarily themselves metals, though carbon, a nonmetal, is an essential constituent of steel. Alloys are usually produced by melting the mixture of ingredients. Why is an alloy formed? Pure metals generally do not have…

Decomposition Reactions require energy in the form of heat or light or electricity for breaking down the reactants. What is the condition required for the decomposition? Oxygen is required for microbes to decompose organic wastes efficiently. Some decomposition occurs in the absence of oxygen (anaerobic conditions); however, the process is slow, and foul odors may…